e35: Add reCAPTCHA to Django user registration form

In this coding session, I focused on some housekeeping for the Western Friend website by removing outdated migration scripts, which helped increase our test coverage. I tackled a challenge with test failures due to a missing ReCAPTCHA private key by setting a default empty string for environment variables during testing, which led to a forward movement in our CI pipeline. Further efforts were directed at improving code quality by removing an entire app, resulting in a significant reduction of lines of code and a likely boost in maintainability scores. There were some deprecation notices that I decided to address later, as well as audio issues during the stream that were troubleshooted with the community's help. ... https://www.youtube.com/watch?v=XtdIfKgiJDA